Articles I have read recently, including this one http://www.bodybuilding.com/fun/cort...en-matter.html
, claim that it doesn't matter as much as they were trying to make people believe.
That said. You cannot build muscle mass while in a calorie deficit. So right now all you are doing (if still dieting) is burning a ton of calories which will definitely help you lose weight if you are not eating back your exercise cals. If you are eating them back, then the strength training (if you are lifting heavy) is at least helping your body to prevent muscle loss as you lose weight. And the cardio and kickboxing are good for all the normal reasons they are good for you.
If you do stop doing that level of exercise and do not alter your eating habits, Quilter is right, you will either gain or stop losing because the body is used to what you are doing and will no longer be using that energy.
ETA: While you can't build muscle in a cal deficit. Strength training can mask weight loss as the body will hold more water and your bones will gain density. If you aren't measuring or tracking in another way that the scale I do recommend it. I had a trainer for 6 months awhile agao, that 6 months I lost maybe 5 lbs but lost a ton of inches